WO2021032025A1

WO2021032025A1 - Signal sending method, signal receiving method, and related device

Info

Publication number: WO2021032025A1
Application number: PCT/CN2020/109371
Authority: WO
Inventors: 费永强; 谢信乾; 郭志恒; 程型清
Original assignee: 华为技术有限公司
Priority date: 2019-08-16
Filing date: 2020-08-14
Publication date: 2021-02-25
Also published as: CN112399389A

Abstract

Disclosed are a signal sending method, a signal receiving method, and a related device. The signal sending method comprises: a first terminal device receives a signal sent by a second terminal device at a first transmission time, and the first terminal device sends the signal at a second transmission time, wherein the first transmission time does not overlap the second transmission time, the first transmission time comprises N₁ time units, and the second transmission time comprises N₂ time units, N₁ and N₂ being positive integers. By means of the solution, the detection performance or demodulation performance of a base station for a signal sent by a user equipment can be improved while the user's perception rate can be ensured.

Description

Signal sending and receiving method and related equipment

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is 201910762425.9, and the application name is "signal sending and receiving method and related equipment" on August 16, 2019. The entire content is incorporated by reference. In this application.

Technical field

The present invention relates to the field of communication technology, and in particular to a signal sending and receiving method and related equipment.

Background technique

In wireless communication systems, such as new radio (NR) communication systems, the information exchanged between user equipment (UE) and base stations (basestation, BS, or g Node B, gNB) is carried through physical channels . Among them, the data sent by the UE, that is, the uplink data, is usually carried by the physical uplink shared channel (PUSCH); the control information sent by the UE, that is, the uplink control information, is usually carried by the physical uplink control channel (physical uplink control). channel, PUCCH) bearer. In addition, the UE can also send a sounding reference signal (SRS), and the gNB can estimate the channel quality of the UE on different frequencies by receiving the SRS of the UE.

In wireless communication, for some deep coverage scenarios, such as cell edges or basements, the path loss of wireless signal propagation is very serious. In the existing solution, in order to enhance the detection performance or demodulation performance of the base station when receiving the signal sent by the UE, it is necessary to adopt a coverage enhancement method. The usual coverage enhancement methods include repeated transmission by the UE and the base station receiving and combining data repeatedly transmitted. Demodulation, etc. Repeated sending and receiving of data is equivalent to occupying more resources to transmit the same amount of data. Therefore, the existing method will cause the user's perception rate to drop.

Summary of the invention

The embodiments of the present invention provide a signal sending and receiving method and related equipment, which can ensure the detection performance or demodulation performance of the signal sent by the user equipment by the base station, and at the same time improve the perception rate of the terminal equipment.

In the first aspect, an embodiment of the present application provides a signal sending method, and the method includes:

The signal received in the first transmission time is received, and the signal received in the first transmission time is transmitted in the second transmission time, wherein the first transmission time and the second transmission time do not overlap, and the first transmission time It includes N ₁ time units, the second transmission time includes N ₂ time units, and N ₁ and N ₂ are positive integers.

In a possible implementation manner, the first terminal device receives the signal sent by the second terminal device at the first transmission time; the first terminal device sends the signal at the second transmission time.

The method of the first aspect of the present invention may be executed by a first terminal device, or may be executed by a chip in the first terminal device, such as a baseband processing chip.

Using the above method, the first terminal device receives the signal transmitted by the second terminal at the first time and transmits the signal at the second transmission time. Therefore, the first terminal device can send the same signal as that sent by the second terminal device. When the network device receives the signal sent by the second terminal device the same number of times as in the existing solution, it also receives the signal sent by the second terminal device forwarded by the neighboring first terminal device, which equivalently improves the first terminal device received by the network device. 2. The signal strength of the terminal equipment improves the perception rate of the terminal equipment.

Optionally, the N ₁ time unit is before the N ₂ time units, the _{index of the N 1} time unit is {0,1,...N ₁ -1}, and the N ₂ time units The index i of the unit is {0,1,...,N ₂ -1};

The signal sent by the first terminal device in the time unit with the index i of the N ₂ _{time units and the index of the first terminal device in the N 1} time unit with the index of (i mod N ₁ ) The signals received in the time unit are the same.

With the above method, the same signal by the first terminal index N ₂ i time units of transmission time unit with the time index in the N ₁ units of (i mod N ₁₎ means for receiving a time signal, It can be ensured that the signals sent by the first terminal device and the second terminal device at the same time are the same signal, thereby equivalently improving the signal strength of the second terminal device, thereby improving the signal demodulation performance of the network device.

Optionally, the method further includes:

Receiving indication information, if the value of the indication information belongs to the first predefined set, the first terminal device receives the signal at the third transmission time, and sends the signal at the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M ₁ time units, the fourth transmission time includes M ₂ time units, and N ₁ time units are Part or all of M ₁ _{time units, and N 2} time units are part or all of the M ₂ time units.

In a possible implementation manner, if the value of the indication information belongs to the first predefined set, the first terminal device receives the signal at the third transmission time and transmits the signal at the fourth transmission time, if the value of the indication information Belongs to the second predefined set, then the second terminal device sends a signal at the third transmission time and the fourth transmission time. Therefore, the first terminal device and the second terminal device can respectively determine each according to the same indication information. The signal transmission method does not need to indicate the first terminal device and the second terminal device through different indication information respectively, which can save indication overhead.

Optionally, the indication information is included in the downlink control information DCI sent by the network device. Using the above method, the signal transmission method of the first terminal device and the second terminal device can be instructed through the same indication information in the DCI, and there is no need to instruct each terminal device to send different indication information separately, and the indication overhead can be reduced.

Optionally, the method further includes:

In the N ₂ time units, the signal sent by the first terminal device in the _{time unit with index i in the N 2} time units and the second terminal device in the N ₂ time units The signals sent in the time unit with index i are the same.

Using the above method, in N ₂ time units, the signal sent by the first terminal device is the same as the signal sent by the second terminal device, which can ensure that the network device receives multiple identical signals at the same time, thereby effectively improving the network device reception The strength of the signal sent by the second terminal device thus improves the signal demodulation performance of the network device.

Optionally, N ₁ is an integer multiple of the number of cyclic redundancy versions RV used by the second terminal device to send the signal.

Optionally, the first terminal device determines the first transmission time and the second transmission time, where the first transmission time includes N ₁ time units, the second transmission time includes N ₂ time units, and the first transmission time and the second transmission time The two transmission times have no overlap, and N ₁ and N ₂ are positive integers; the first terminal device receives the signal in the first transmission time, and transmits the signal received in the first transmission time in the second transmission time.

Optionally, the transmission time constituted by the first transmission time and the second transmission time includes N ₁ +N ₂ _{time units, and the N 1} time units included in the first transmission time are among _{the N 1} +N ₂ time units time units before the N _1, N ₂ time units comprises a second transmission time for the N ₁ + N ₂ time units after the N ₂ time units.

_{Optionally, remember that the indexes of N 1} time units included in the first transmission time are {0,1,...N ₁ _{-1}, and the indexes of N 2} time units included in the second transmission time are {0 ,1,…,N ₂ -1};

Time units in the N ₂ time units, the terminal i at time index signal transmission unit is the index in the N ₁ time unit is (i mod N ₁₎ is received in The signals are the same, where i is an integer, 0≤i≤N ₂ -1, and mod is a modulo operation.

In the second aspect, an embodiment of the present application provides a signal receiving method, the method including:

Receiving the signal sent by the second terminal device at the first transmission time;

Receiving the signal sent by the first terminal device and the second terminal device at the second transmission time;

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N ₁ time units, the second transmission time includes N ₂ time units, and N ₁ and N ₂ are Positive integer.

When the network device _{receives the signal sent by the first terminal device in the time unit with the index i of the N 2} time units, and the network device has the index of (i mod N ₁ ) _{in the N 1 time units} The time unit receives the same signal sent by the first terminal device.

The method in the second aspect of the present invention may be executed by a network device, or may be executed by a chip in the network device, such as a baseband processing chip.

Optionally, the method further includes:

Send instructions;

If the value of the indication information belongs to the first predefined set, instruct the first terminal device to receive the signal at the third transmission time and send the signal at the fourth transmission time;

Optionally, the method further includes:

Send instructions;

If the value of the indication information belongs to the second predefined set, instruct the second terminal device to send a signal at the third transmission time and the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M ₁ time units, the fourth transmission time includes M ₂ time units, and N ₁ time units are Part or all of M ₁ _{time units, and N 2} time units are part or all of the M ₂ time units. Therefore, the network device can indicate the respective signal transmission methods of the first terminal device and the second terminal device through the same indication information, instead of instructing the first terminal device and the second terminal device through different indication information, which can save Indicated overhead.

Optionally, the indication information is included in the downlink control information DCI.

Optionally, the method further includes:

The network device index N ₂ time units of the signal receiving unit and the network device first terminal device transmits the index i in the N ₂ time units for time i unit receives the time The signals sent by the second terminal device are the same.

In the third aspect, an embodiment of the present application provides a terminal device, which is configured to perform the following steps:

Receiving a signal at a first transmission time, and sending a signal received at the first transmission time in a second transmission time;

In a possible implementation manner, the terminal device includes a receiving unit and a sending unit, where:

The receiving unit is configured to receive a signal sent by a second terminal device at a first transmission time;

The sending unit is configured to send the signal at the second transmission time.

Optionally, the device is also used for:

Receiving indication information, if the value of the indication information belongs to the first predefined set, receiving the signal at the third transmission time, and sending the signal at the fourth transmission time;

Optional,

If the value of the indication information belongs to a second predefined set, the second terminal device sends a signal at the third transmission time and the fourth transmission time. Therefore, the first terminal device and the second terminal device can respectively determine their respective signal transmission methods according to the same indication information, instead of instructing the first terminal device and the second terminal device through different indication information, which can save instructions. Overhead.

Optionally, the indication information is included in the downlink control information DCI sent by the network device.

Optionally, the device is also used for:

The N ₂ time units, the index signal in the N ₂ i time units of transmission time unit with the second terminal unit time index i in the N ₂ time units The signal sent in is the same.

Optionally, the device is configured to: determine a first transmission time and a second transmission time, where the first transmission time includes N ₁ time units, the second transmission time includes N ₂ time units, and the first transmission time There is no overlap with the second transmission time, and N ₁ and N ₂ are positive integers; the first terminal device receives the signal in the first transmission time and transmits the signal received in the first transmission time in the second transmission time.

N ₂ time units in the time unit, the terminal device, the time for a signal index i is the index unit transmits the N ₁ in the time unit is (i mod N ₁₎ of The received signals are the same, where i is an integer, 0≤i≤N ₂ -1, and mod is a modulo operation.

In a fourth aspect, an embodiment of the present application provides a network device, the network device includes a first receiving unit and a second receiving unit, wherein:

The first receiving unit is configured to receive a signal sent by a second terminal device at a first transmission time;

The second receiving unit is configured to receive the signal sent by the first terminal device and the second terminal device at a second transmission time;

N ₂ in the indices i time units into time unit receiving the signal with the index of the first terminal device transmits the N ₁ in the time unit is (i mod N ₁₎ to the receiving unit of time The signals sent by the first terminal device are the same.

Optionally, the network device is also used for:

Send instructions;

Optionally, the network device is also used for:

Send instructions;

Optionally, the network device is further configured to time index i in the unit receiving the N ₂ time units in the first terminal device transmits a signal to the network device with the N ₂ time units in The time unit whose index is i receives the same signal sent by the second terminal device.

In a fifth aspect, an embodiment of the present application provides a communication system, which includes the terminal device described in the third aspect and the network device described in the fourth aspect.

In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium that stores a computer program, and the computer program includes program instructions that, when executed by a processor, cause all The processor executes all or part of the methods of the first and second aspects.

In a seventh aspect, an embodiment of the present application provides a signal sending device in a terminal device, including a processor and a memory, where:

The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the first aspect or the method in any possible implementation manner of the first aspect.

In an eighth aspect, an embodiment of the present application provides a signal receiving apparatus in a network device, including a processor and a memory, where:

The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the second aspect or the method in any possible implementation manner of the second aspect.

In a ninth aspect, an embodiment of the present application provides a chip system, which includes a processor, and is configured to support a terminal device to implement the first aspect or any possible implementation method of the first aspect.

In a tenth aspect, an embodiment of the present application provides a chip system including a processor for supporting a network device to implement the second aspect or any possible implementation method of the second aspect.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

FIG. 1 provides a schematic structural diagram of a communication system according to an embodiment of the application;

FIG. 2 is a schematic diagram of interaction of a signal sending and receiving method according to an embodiment of this application;

FIG. 3 is an interactive schematic diagram of another signal sending and receiving method according to an embodiment of the application;

FIG. 4 is an interactive schematic diagram of another signal sending and receiving method according to an embodiment of the application;

FIG. 5 is a schematic diagram of interaction of another signal sending and receiving method according to an embodiment of this application;

FIG. 6 is a schematic diagram of interaction of another signal sending and receiving method according to an embodiment of this application;

FIG. 7 is a schematic block diagram of a terminal device provided in an embodiment of this application;

FIG. 8 is a schematic block diagram of a network device provided in an embodiment of this application;

FIG. 9 An embodiment of the present application provides a schematic structural diagram of a terminal device;

FIG. 10 is a schematic structural diagram of a network device provided in an embodiment of this application;

FIG. 11 is a schematic diagram of the structure of a chip system provided by the present application according to an embodiment of the present application.

detailed description

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application will be explained to facilitate the understanding of those skilled in the art.

1) Terminal devices, including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems. The terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle-to-everything (V2X) Terminal equipment, machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal) , User agent (user agent), or user equipment (user device), etc. For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal equipment, portable, pocket-sized, handheld, and computer-built mobile devices. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants), PDA), and other equipment. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.

As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The various terminal devices described above, if they are located on the vehicle (for example, placed in the vehicle or installed in the vehicle), can be considered as vehicle-mounted terminal equipment, for example, the vehicle-mounted terminal equipment is also called on-board unit (OBU). ).

2) Network equipment, such as access network (AN) equipment, such as a base station (e.g., access point), may refer to equipment that communicates with wireless terminal equipment through one or more cells on the air interface in the access network Or, for example, an access network device in a V2X technology is a road side unit (RSU). The base station can be used to convert the received air frame and Internet Protocol (IP) packets to each other, as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications. The access network equipment can also coordinate the attribute management of the air interface. For example, the access network equipment may include a long-term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional NodeB) in a long term evolution-advanced (LTE-A) system. ), or it may also include the next generation node B (gNB) in the 5th generation (5G) NR system of the fifth generation mobile communication technology (the 5th generation, 5G), or it may also include the cloud radio access network (CloudRAN). ) Centralized unit (centralized unit, CU) and distributed unit (distributed unit, DU) in the system, which are not limited in the embodiment of the present application.

Of course, the network equipment may also include core network equipment, but because the technical solutions provided by the embodiments of this application mainly involve access network equipment, in the following text, unless otherwise specified, the “network equipment” described below is all Refers to the access network equipment.

3) "At least one" means one or more, and "plurality" means two or more. "And/or" describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one item (a) of a, b, or c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple .

And, unless otherwise stated, the ordinal numbers such as "first" and "second" mentioned in the embodiments of this application are used to distinguish multiple objects, and are not used to limit the order, timing, priority, or order of multiple objects. Importance. For example, the first information and the second information are only used to distinguish different information, but do not indicate the difference in content, priority, sending order, or importance of the two types of information.

Some concepts related to the embodiments of the present application are introduced as above, and the technical features of the embodiments of the present application are introduced below.

In order to solve the problem in the prior art, in some deep coverage scenarios, the path loss of wireless signal propagation is very serious, causing the signal sent by the terminal device to reach the network device very weakly. The coverage enhancement method in the existing solution may cause In the case of a decrease in the user’s perception rate, this application proposes to adopt at least one nearby terminal device to forward the signal sent by the terminal device, so that when the network device receives the signal sent by the second terminal device the same number of times as in the existing solution, The signal sent by the second terminal device forwarded by the neighboring terminal device is also received, which equivalently improves the strength of the signal of the second terminal device received by the network device, and improves the perception rate of the terminal device.

The embodiments of the present application will be described below in conjunction with the drawings.

In order to better understand the signal sending and receiving methods in the embodiments of the present application, an embodiment of the present application provides a schematic structural diagram of a communication system applying the signal sending and receiving methods. Please refer to FIG. 1. FIG. 1 provides a schematic structural diagram of a communication system according to an embodiment of the application. As shown in Figure 1, the communication system includes a network device and a plurality of terminal devices. The network device is, for example, an access network device, such as a base station, or may also be a device such as an RSU. The terminal device includes at least one first terminal device and at least one first terminal device. Two terminal devices. The first terminal device can receive/forward signals sent by other terminal devices. The second terminal device sends the same signal during the first transmission time and the second transmission time. When receiving the signal sent by the second terminal device, the first terminal device sends the received signal at the second transmission time, and when the first terminal device sends the signal at the second transmission time, the characteristics of the signal are not changed; the base station receives the second terminal device at The signal sent during the first transmission time and the second transmission time, and the signal sent by the first terminal device at the second transmission time is received. The first transmission time and the second transmission time do not overlap, and the first transmission time includes N ₁ times Unit, the second transmission time includes N ₂ time units, and N ₁ and N ₂ are positive integers. Therefore, the first terminal device can send the same signal as that sent by the second terminal device, and the performance of the base station for receiving the signal sent by the second terminal device can be improved. At the same time, compared with the existing solution, the network device receiving When the signal sent by the second terminal device is the same number of times, the signal sent by the second terminal device forwarded by the first terminal device is also received, which equivalently increases the signal strength of the second terminal device received by the network device and increases Perceived rate of the second terminal device. Wherein, the time unit can be a slot, a frame, a subframe, a symbol, a symbol group, or other time units. No specific restrictions. The signal sent by the second terminal device may include one or more of PUSCH, PUCCH, SRS, and demodulation reference signal (DMRS).

Please refer to FIG. 2. FIG. 2 is an interactive schematic diagram of a signal sending and receiving method according to an embodiment of the application. As shown in Figure 2, the signal sending and receiving method includes steps S201-S204, which are specifically as follows:

S201. The second terminal device sends a signal at the first transmission time and the second transmission time.

Wherein, the redundancy version number of the signal sent by the second terminal device is RV0, of course, it may also include other redundancy version numbers, such as RV1, RV2, RV3, etc., which are only examples for illustration and no specific limitation is made here. S202: The first terminal device receives the signal at the first transmission time.

The second terminal device sends a signal during the first transmission time, and the first terminal device receives the signal sent by the second terminal device during the first transmission time.

S203. The first terminal device sends a signal at the second transmission time.

The signal sent by the first terminal device at the second transmission time is the same as the signal received at the first transmission time. Since the signals sent by the second terminal device in the first transmission time and the second transmission time are the same, in the second transmission time, the signals sent by the first terminal device and the second terminal device are the same.

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N ₁ time units, the second transmission time includes N ₂ time units, and N ₁ time units are before N ₂ time units, The index of the N ₁ time unit is {0,1,...N ₁ -1}, the _{index i of the N 2} time unit is {0,1,...,N ₂ -1}, the first terminal time units of the first signal transmission terminal equipment unit for time i in an N ₂ time units indices index the N ₁ time unit is (i mod N ₁₎ is received in the same signal, N ₁ And N ₂ are positive integers. mod is the remainder operation, i mod N ₁ is the remainder of i divided by N _1.

Optionally, the network device sends downlink control information (DCI) to the first terminal device and the second terminal device. The DCI includes indication information. The indication information is used to indicate that the first terminal device is at the first transmission time. The signal is received and the signal received in the first transmission time is sent at the second transmission time; optionally, the indication information is used to instruct the second terminal device to send the signal in the first transmission time and the second transmission time.

A possible method is that if the value of the indication information belongs to the first predefined set, the indication information indicates that the first terminal device receives the signal at the first transmission time, and sends it at the second transmission time and receives it at the first transmission time. If the value of the indication information belongs to the second predefined set, the indication information indicates that the second terminal device sends the signal in the first transmission time and the second transmission time. Optionally, before the network device sends DCI to the first terminal device and the second terminal device, it may also configure an index for each of multiple terminal devices including the first terminal device and the second terminal device, and the index may be Any logo, such as numbers, letters, etc.

Optionally, a possible indication method of the indication information in the DCI is that if the index of the terminal device is the same as the value of the indication information, the terminal device is the second terminal device, otherwise it is the first terminal device. Similarly, the indication method of the indication information in the DCI may also be: if the index of the terminal device is the same as the value of the indication information, the terminal device is the first terminal device, otherwise it is the second terminal device.

Optionally, assuming that the index of the terminal device is the same as the value of the indication information, the terminal device is the second terminal device as an example. A possible indication method of the indication information is: for a cooperative transmission group composed of multiple terminal devices, indicating The information can be a [log ₂ (N)] bit field in the _{DCI, and the value of the [log 2} (N)] bit field indicates whether the terminal device in the cooperative transmission group belongs to the second terminal device or the first terminal device . For example, when N=4, the specific field length [log ₂ (N)]=2 bits, a cooperative transmission group consisting of 4 terminal devices, the indexes of the 4 terminal devices in the group are "0" and "1"","2","3", the terminal device of the cooperative transmission group receives the DCI including the indication information. For a terminal device with an index of 0, the corresponding first set is {1,2,3}, and the corresponding second set is {0}; for a terminal device with an index of 1, the corresponding first set is {0 ,2,3}, the corresponding second set is {1}; for the terminal device with index 2, the corresponding first set is {0,1,3}, and the corresponding second set is {2}; for For a terminal device with an index of 3, the corresponding first set is {0,1,2}, and the corresponding second set is {3}. Exemplarily, 4 terminal devices in the group receive the DCI including the indication information. When the value of the indication information in the DCI is 3, the value of the indication information belongs to the second set for the terminal device with an index of 3, so The terminal device with an index of 3 is the second terminal device, which sends information at the first transmission time and the second transmission time; and similarly, the terminal device with an index other than 3 (that is, 0, 1, 2) is These are the first terminal devices, and these terminal devices receive signals at the first transmission time and transmit the signals received at the first transmission time at the second transmission time. In the above method, the number of bits occupied by the indication information is small, which is beneficial to reduce the bit overhead of the DCI.

Optionally, another possible indication method of indication information is: for a cooperative transmission group composed of N terminal devices, the indication information may be an N-bit special field in the DCI, and each bit in the special field is The value is 0 or 1, the index of each terminal device corresponds to the integer value between 0 and N-1, and each index value corresponds to the bit position; for example, the index value is 0, which corresponds to the first One bit, the index value of N-1 corresponds to the Nth bit of the special field, the first bit to the Nth bit and the first position to the Nth position of the special field from left to right (from high to low) One correspondence.

Among them, for each terminal device in the cooperative transmission group, the preset first set may all be {0} (which indicates that the value of the bit is 0), and the preset second set may all be {1} (It means that the value of the bit is 1). For example, for a cooperative transmission group composed of 4 terminal devices, the length of the indication information is 4 bits, and the indexes of the 4 terminal devices are the values in {0, 1, 2, 3}; the 4 terminal devices receive the same The DCI of the indication information, if the value of the indication information is '0110', it can be determined that the terminal devices with

indexes

0 and 3 are the first terminal devices (the first bit and the fourth bit have the value 0), and the index is

Devices

1 and 2 are the second terminal devices (the values of the second bit and the third bit are 1). Therefore, by the above method, multiple first terminal devices and multiple second terminal devices can be identified in one piece of identification information, which improves the flexibility of indication.

Of course, there can also be other indication methods for the indication information. The function of the indication information is: the value of the indication information belongs to the first predefined set, then the second terminal device sends the signal at the first transmission time and the second transmission time; the indication information The value of belongs to the second predefined set, and the first terminal device receives the signal at the first transmission time and sends the signal at the second transmission time. The indication information setting method in the embodiment of the present application is only an example and is not specifically limited.

In a possible embodiment, the network device sends a specific DCI to the terminal device. If the terminal device receives the specific DCI, it is determined to be the first terminal device, that is, it receives the signal at the first transmission time, and at the second transmission time Send the signal received in the first transmission time. One possible method is to use a specific radio network temporary identity (RNTI) to scramble a specific DCI, and to notify the terminal equipment of the specific RNTI; when the terminal equipment successfully uses the specific RNTI for the specific DCI After descrambling, it can be determined that the terminal device is the first terminal device. Therefore, in this example, there is no need to set indication information in the DCI, that is, there is no need to add an indication information field to the DCI, so that the terminal device can determine the specific transmission mode, that is, receive the signal at the first transmission time, and The second transmission time transmits the signal received in the first transmission time. Therefore, this method can enable the terminal device to determine a specific transmission mode without changing the existing DCI load, and can reduce the bit overhead in the DCI.

In a possible embodiment, the network device may also send different DCIs to the terminal device, and the terminal device determines different transmission modes according to the received DCI. Different DCIs can be distinguished by RNTI or other distinguishing methods. This application does not make specific restrictions.

Optionally, the first transmission time and the second transmission time may be configured through radio resource control (Radio Resource Control, RRC) signaling, or may be indicated in DCI, or indicated by a combination of RRC signaling and DCI Specifically, for example, it can be: indicating the duration of the first transmission time and the second transmission time, such as the number of time slots, or the ratio of the first transmission time to the sum of the total first transmission time and the second transmission time, and It can be the ratio of the first transmission time to the second transmission time, and of course, it can also be configured or indicated in other ways. This is only an example for illustration and no specific limitation is made.

In a possible embodiment, the DCI may also carry the number of repeated signal transmissions K. After receiving the DCI, when the terminal device determines that it is the second terminal device, at a preset time after the time when the DCI is received, according to The PUSCH scheduled by DCI sends the signal K times repeatedly, where it can be sent in N ₁ _{time units in the first transmission time, and sent in N 2} time units in the second transmission time, where K is N ₁ and N _The sum of 2, the preset time can be determined by a predefined interval time and the end time of the time-frequency resource carrying the DCI.

Optionally, N ₁ is an integer multiple of the number of cyclic redundancy versions used by the second terminal device to send signals. This is beneficial for the first terminal device to receive all the signals of the cyclic redundancy version sent by the second terminal device during the first transmission time. Therefore, the first terminal device transmits the signals received during the first transmission time during the second transmission time. In the case of a signal, all cyclic redundancy version signals sent by the second terminal device can be sent, that is, all cyclic redundancy version signals sent by the second terminal device are enhanced.

Optionally, if the first terminal device has a signal power amplification function, the first terminal device may amplify the transmitted signal when transmitting the signal at the second transmission time, that is, increase the transmission power of the transmitted signal, so that it can further Enhance the strength of the signal received by the network device, where the transmission power or the amplification factor can be pre-configured by the network device.

S204. The network device receives the signal at the first transmission time and the second transmission time.

The signals received by the network device at the first transmission time and the second transmission time are both the same signal, that is, the signal sent by the first terminal device and the signal sent by the second terminal device received by the network device at the second transmission time are The same signal, and the signal is the same as the signal received by the terminal device at the first transmission time.

For the first terminal device, in the steps S201 to S203, the first terminal device determines the first transmission time and the second transmission time, where the first transmission time includes N1 time units, and the second transmission time includes N2 time units , And there is no overlap between the first transmission time and the second transmission time, N1 and N2 are positive integers; the first terminal device receives the signal in the first transmission time, and sends in the second transmission time and receives in the first transmission time To the signal.

In a possible implementation manner, the transmission time formed by the first transmission time and the second transmission time includes N1+N2 time units, and the N1 time units included in the first transmission time are among the N1+N2 time units. The first N1 time units and the N2 time units included in the second transmission time are the last N2 time units among the N1+N2 time units.

In a possible implementation, the index of the N1 time units included in the first transmission time is {0,1,... N1-1}, and the index of the N2 time units included in the second transmission time is {0,1,...,N2-1};

In the N2 time units, the signal sent by the terminal device in the time unit with index i is the same as the signal received in the time unit with index (i mod N1) in the N1 time units, Among them, i is an integer, 0≤i≤N2-1, and mod is a modulo operation.

Of course, there may be multiple first terminal devices in this embodiment, and their specific signal processing procedures are the same as the aforementioned first terminal device signal processing procedures.

Please refer to FIG. 3. FIG. 3 is an interactive schematic diagram of another signal sending and receiving method provided in an embodiment of the present application. In this example, it is assumed that N1 is 1, and the signal sent by the terminal device is PUSCH as an example for description. As shown in Fig. 3, the network device sends DCI to the terminal devices in the cooperative transmission group. The DCI indicates the number N1 of time units in the first transmission time, and the number N2 of time units in the second transmission time.

After receiving the DCI, the terminal device in the cooperative transmission group determines whether it belongs to the first terminal device or the second terminal device; after the terminal device determines that it is the second terminal device, it sends the PUSCH according to the DCI instruction, and sends it in the first transmission time. The signal with the redundancy version number RV0 is sent once and N2 times in the second transmission time. For the specific determination method of the coordinated transmission group, refer to the determination method in the embodiment described in FIG. 2, which is not repeated here.

After the terminal device determines that it belongs to the first terminal device, it receives the signal with the redundancy version number RV0 once in the first transmission time, and transmits the signal of RV0 received in the first transmission time N2 times in the second transmission time. .

The network device receives the signal with the redundancy version number RV0 sent by the second terminal device once at the first transmission time, and receives the signal with the redundancy version number RV0 sent by the second terminal device N2 times at the second transmission time, and In the second transmission time, the signal with the redundancy version number RV0 sent by the first terminal device is received N2 times.

The method for the terminal device to determine that it belongs to the first terminal device or the second terminal device refers to the determination method in the embodiment described in FIG. 2, which will not be repeated here.

Please refer to FIG. 4. FIG. 4 is an interactive schematic diagram of another signal sending and receiving method according to an embodiment of the present application, and the signal sent by the terminal device is the PUSCH as an example for description. As shown in Figure 4, the second terminal device sends signals with redundancy version numbers RV0, RV2, RV3, and RV1 at the first transmission time and the second transmission time, and N1 is 4, that is, 1 times the number of redundancy versions 4; The first terminal device receives the signals of RV0, RV2, RV3, and RV1 in the first transmission time, and transmits the signals of RV0, RV2, RV3, and RV1 received in the first transmission time in the second transmission time, and the first terminal device The signal sent in the time unit with index i of N2 time units is the same as the signal received by the first terminal device in the time unit with index (i mod 4) among the 4 time units in the first transmission time. The specific sequence of the redundancy version may be predefined, or configured through RRC signaling, or notified by DCI, or determined by a combination of predefined and DCI notification, or a combination of RRC signaling and DCI notification. Through the method in this embodiment, when the number of redundancy versions of the signal sent by the second terminal device is greater than 1, the signal sent by the first terminal device in the second transmission time can still be compared with the second terminal in each time unit. The signal sent by the device is the same, which plays a role of signal enhancement.

Please refer to FIG. 5. FIG. 5 provides an interactive schematic diagram of another signal sending and receiving method according to an embodiment of the present application, and the signal sent by the terminal device is the PUSCH as an example for description. As shown in Figure 5, the second terminal device continuously transmits the signal of each RV version 4 times, and the first terminal device receives the signal of the RV version during the first transmission time of the first transmission of the signal of each RV version. The signal of the RV version received in the first transmission time is sent in the second transmission time. As shown in the figure, the first terminal device respectively receives signals with redundancy version numbers RV0, RV1, RV2, and RV3 at the first transmission time, and transmits the above-mentioned redundancy version numbers as RV0, RV1, RV2, and RV2 at the second transmission time. RV3 signal. Wherein, when the signals of the same RV version are transmitted, the first transmission time is before the second transmission time, and the signals with the same RV version number in the first transmission time and the second transmission time are the same signal. In addition, when the second terminal device sends signals of different RV versions, it may send signals in a frequency hopping manner.

Please refer to FIG. 6. FIG. 6 is an interactive schematic diagram of another method for signal sending and receiving according to an embodiment of the present application, and the signal sent by the terminal device is the PUSCH as an example for description. As shown in FIG. 6, when the second terminal device is performing signal transmission, it can use the method of frequency hopping between time units (such as frequency hopping between time slots) to transmit the signal. This embodiment performs frequency hopping between time slots. As an example of signal transmission, the second terminal device sends a signal at the third transmission time and the fourth transmission time, the first terminal device receives the signal at the third transmission time, and sends the signal at the fourth transmission time. Specifically, as shown in the figure, 4 sets of signals with different RV versions are transmitted on the first frequency, and 4 sets of signals with different RV versions are transmitted on the second frequency. The signals with the same RV version number in the different sets of signals are the same signal . Among them, N1 time units are part or all of the third transmission time, and N2 time units are part or all of the fourth transmission time. It can be understood that the third transmission time may include at least one complete first transmission time. The fourth transmission time may include at least one complete second transmission time, and signals with the same RV version number in the third transmission time and the fourth transmission time are the same signal.

FIG. 7 provides a schematic block diagram of a terminal device according to an embodiment of this application, and the terminal device 700 is configured to perform the following steps:

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N1 time units, the second transmission time includes N2 time units, and N1 and N2 are positive integers.

Optionally, as an embodiment, the terminal device includes a receiving unit 710 and a sending unit 720, where:

The receiving unit 710 is configured to receive a signal sent by the second terminal device at the first transmission time;

The sending unit 720 is configured to send the signal at the second transmission time.

In the embodiment of the present application, the first terminal device receives the signal transmitted by the second terminal at the first time and transmits the signal at the second transmission time. Therefore, the first terminal device can send the same signal as that sent by the second terminal device. Signal, so that when the network device receives the signal sent by the second terminal device the same number of times as in the existing solution, it also receives the signal sent by the second terminal device forwarded by the adjacent first terminal device, which effectively improves the network device’s reception The signal strength of the second terminal device improves the perception rate of the terminal device.

Optionally, as an embodiment, N1 time units are before N2 time units, the indexes of N1 time units are {0,1,...N1-1}, and the index i of N2 time units is {0, 1,...,N2-1};

The signal sent in the time unit with index i of N2 time units is the same as the signal received in the time unit with index (i mod N1) in N1 time units.

Optionally, as an embodiment, the device is also used to:

Among them, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, N1 time units are part or all of M1 time units, and N2 time units The time unit is part or all of M2 time units.

Optionally, as an embodiment, if the value of the indication information belongs to the second predefined set, the second terminal device sends the signal at the third transmission time and the fourth transmission time.

Optionally, as an embodiment, the indication information is included in the downlink control information DCI sent by the network device.

Optionally, as an embodiment, the device is also used to:

In the N2 time units, the signal sent by the time unit with index i in the N2 time units is the same as the signal sent by the second terminal device in the time unit with index i in the N2 time units.

Optionally, as an embodiment, N1 is an integer multiple of the number of cyclic redundancy versions RV used by the second terminal device to send signals.

Optionally, as an embodiment, the device is configured to: determine a first transmission time and a second transmission time, where the first transmission time includes N1 time units, the second transmission time includes N2 time units, and the first transmission time includes N2 time units. The first transmission time and the second transmission time do not overlap, and N1 and N2 are positive integers; the first terminal device receives the signal in the first transmission time, and transmits the signal received in the first transmission time in the second transmission time .

Optionally, as an embodiment, the transmission time formed by the first transmission time and the second transmission time includes N1+N2 time units, and the N1 time units included in the first transmission time are among the N1+N2 time units The first N1 time units and the N2 time units included in the second transmission time are the last N2 time units among the N1+N2 time units.

Optionally, as an embodiment, the index of the N1 time units included in the first transmission time is {0,1,...N1-1}, and the index of the N2 time units included in the second transmission time is {0,1,...,N2-1};

In the N2 time units, the terminal device is used for the signal sent in the time unit with index i and the signal received in the time unit with index (i mod N1) in the N1 time units The signals are the same, where i is an integer, 0≤i≤N2-1, and mod is a modulo operation.

FIG. 8 is a schematic block diagram of a network device provided in an embodiment of this application. The network device includes a first receiving unit and a second receiving unit, where:

The first receiving unit 810 is configured to receive a signal sent by the second terminal device at the first transmission time;

The second receiving unit 820 is configured to receive signals sent by the first terminal device and the second terminal device at the second transmission time;

The signal sent by the first terminal device is received at the time unit with the index i of the N2 time units and the first terminal is received at the time unit with the index (i mod N1) in the N1 time units The signal sent by the device is the same.

Optionally, as an embodiment, the network device is also used to:

Send instructions;

Optionally, as an embodiment, the network device is also used to:

Send instructions;

Optionally, as an embodiment, the indication information is included in the downlink control information DCI.

Optionally, as an embodiment, the network device is further configured to receive the signal sent by the first terminal device in the time unit indexed by i among the N2 time units and the network device receives the time unit indexed by i among the N2 time units. The signals sent by the second terminal device are the same.

Figure 9 shows a simplified schematic diagram of a terminal device. It is easy to understand and easy to illustrate. In FIG. 9, the terminal device uses a mobile phone as an example. As shown in Figure 9, the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 9. In actual terminal equipment products, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device. As shown in FIG. 9, the terminal device includes a transceiver unit 910 and a processing unit 920. The transceiver unit may also be referred to as a transceiver, a transceiver, a transceiver, and so on. The processing unit may also be called a processor, a processing board, a processing module, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiver unit 910 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiver unit 910 can be regarded as the sending unit, that is, the transceiver unit 910 includes a receiving unit and a sending unit. The transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit. The receiving unit may sometimes be called a receiver, receiver, or receiving circuit. The transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiving unit 910 is configured to perform sending and receiving operations on the terminal device side in the foregoing method embodiment, and the processing unit 920 is configured to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.

When the communication device is a chip-type device or circuit, the device may include a transceiver unit and a processing unit. Wherein, the transceiver unit may be an input/output circuit and/or a communication interface; the processing unit is an integrated processor or microprocessor or integrated circuit.

Please refer to FIG. 10, which is a schematic structural diagram of a network device according to an embodiment of this application. The network device is used to execute the steps corresponding to the steps of the corresponding network device in the foregoing method embodiments. As shown in FIG. 10, the network device 1000 may include: one or more processors 1001, a memory 1002, a network interface 1003, a transceiver 1005, and an antenna 1008. These components can be connected through the bus 1004 or in other ways. FIG. 10 takes the connection through the bus as an example. among them:

The network interface 1003 can be used for the network device 1000 to communicate with other communication devices, such as other network devices. Specifically, the network interface 1003 may be a wired interface.

The transceiver 1005 may be used to transmit and process the signal output by the processor 1001, such as signal modulation. The transceiver 1005 can also be used for receiving and processing the mobile communication signal received by the antenna 1008. For example, signal demodulation. In some embodiments of the present application, the transceiver 1005 can be regarded as a wireless modem. In the network device 1000, the number of the transceiver 1005 may be one or more. The antenna 1008 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.

The memory 1002 may be coupled with the processor 1001 through a bus 1004 or an input/output port, and the memory 1002 may also be integrated with the processor 1001. The memory 1002 is used to store various software programs and/or multiple sets of instructions or data. Specifically, the memory 1002 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices. The memory 1002 may store an operating system (hereinafter referred to as system), such as embedded operating systems such as uCOS, VxWorks, RTLinux, and so on. The memory 1002 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.

The processor 1001 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application. The processor may also be a combination that implements certain functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.

In the embodiment of the present application, the processor 1001 may be used to read and execute computer-readable instructions. Specifically, the processor 1001 may be used to call a program stored in the memory 1002, such as a program for implementing the signal sending and receiving method provided by one or more embodiments of the present application on the network device 1000 side, and execute the instructions contained in the program .

It is understandable that the network device 1000 may be the network device shown in FIG. 1, and may be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), an extended service set (ESS), NodeB, eNodeB, gNB, etc. Wait.

It should be noted that the network device 1000 shown in FIG. 10 is only an implementation manner of the embodiment of the present application. In actual applications, the network device 1000 may also include more or fewer components, which is not limited here. For the specific implementation of the network device 1000, reference may be made to related descriptions in the foregoing method embodiments, and details are not described herein again.

Referring to FIG. 11, FIG. 11 provides a schematic structural diagram of a chip system provided by this application for an embodiment of the application. As shown in FIG. 11, the chip system 1100 may include a processor 1101 and one or more interfaces 1102 coupled to the processor 1101. Exemplary:

The processor 1101 can be used to read and execute computer-readable instructions. In specific implementation, the processor 1101 may mainly include a controller, an arithmetic unit, and a register. Exemplarily, the controller is mainly responsible for instruction decoding, and sends control signals for operations corresponding to the instructions. The arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations and logical operations, etc., and can also perform address operations and conversions. The register is mainly responsible for storing the register operands and intermediate operation results temporarily stored during the execution of the instruction. In specific implementation, the hardware architecture of the processor 1101 can be an application specific integrated circuit (ASIC) architecture, a microprocessor without interlocked pipeline stage architecture (microprocessor without interlocked stages architecture, MIPS) architecture, and advanced streamlining. Instruction set machine (advanced RISC machines, ARM) architecture or NP architecture, etc. The processor 1101 may be single-core or multi-core.

Exemplarily, the interface 1102 can be used to input data to be processed to the processor 1101, and can output the processing result of the processor 1101 externally. In specific implementation, the interface 1102 can be a general purpose input output (GPIO) interface, which can be connected to multiple peripheral devices (such as a display (LCD), a camera (camara), a radio frequency (RF) module, etc.) connection. The interface 1102 is connected to the processor 1101 through the bus 1103.

In a possible implementation manner, the processor 1101 can be used to call the implementation program or data of the signal sending and receiving method provided by one or more embodiments of the present application from the memory on the network device or terminal device side, so that the chip can The signal sending and receiving methods shown in Figures 2 to 6 are implemented. The memory may be integrated with the processor 1101, or may be coupled with the chip system 1100 through the interface 1102, that is to say, the memory may be a part of the chip system 1100, or may be independent of the chip system 1100. The interface 1102 can be used to output the execution result of the processor 1101. In this application, the interface 1102 may be specifically used to output the decoding result of the processor 1101. For the signal sending and receiving methods provided by one or more embodiments of the present application, reference may be made to the foregoing embodiments, which will not be repeated here.

It should be noted that the functions corresponding to each of the processor 1101 and the interface 1102 can be implemented either through hardware design, through software design, or through a combination of software and hardware, which is not limited here.

A communication system. The communication system includes a plurality of devices including a network device and a terminal device. Exemplarily, the network device may be the network device in the foregoing embodiment, and the terminal devices may be the first terminal device and the second terminal device in the foregoing embodiment, and are used to perform the signal sending, Receiving method.

The embodiment of the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium may store a program, and when the program is executed, it includes any part or part of the signal sending and receiving methods described in the above method embodiments. All steps.

An embodiment of the present application also provides a signal sending device, including a processor and a memory, where the memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement FIG. 2 to FIG. 6 in the foregoing embodiment. The method corresponding to the terminal device in the above embodiment, or the method corresponding to the network device in FIG. 2 to FIG. 6 in the foregoing embodiment.

It should be noted that for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described sequence of actions. Because according to the present invention, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the involved actions and modules are not necessarily required by the present invention.

In the foregoing embodiments, the description of each embodiment has its own focus, and for a part that is not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.

In addition, the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable memory. Based on this understanding, the technical solution of the present invention essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory, A number of instructions are included to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other various media that can store program codes.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, abbreviation: ROM), random access device (English: Random Access Memory, abbreviation: RAM), magnetic disk or optical disc, etc.

The embodiments of the present invention are described in detail above, and specific examples are used in this article to illustrate the principles and implementation of the present invention. The descriptions of the above embodiments are only used to help understand the methods and core ideas of the present invention; Those of ordinary skill in the art, based on the idea of the present invention, will have changes in the specific implementation and the scope of application. In summary, the content of this specification should not be construed as limiting the present invention.

Claims

A signal sending method, characterized in that the method includes:

Receiving a signal sent by the second terminal device at the first transmission time;

Sending the signal at the second transmission time;

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N1 time units, the second transmission time includes N2 time units, and N1 and N2 are positive integers.
The method according to claim 1, wherein:

The N1 time units are before the N2 time units, the indexes of the N1 time units are {0,1,...N1-1}, and the index i of the N2 time units is {0,1 ,...,N2-1};

The signal sent by the first terminal device in the time unit with index i of the N2 time units and the signal received by the first terminal device in the time unit with index (i mod N1) in the N1 time units The signal is the same.
The method of claim 2, wherein the method further comprises:

Receiving indication information, if the value of the indication information belongs to the first predefined set, the first terminal device receives the signal at the third transmission time, and sends the signal at the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, and N1 time units are M1 time units. Part or all of the unit, N2 time units are part or all of the M2 time units.
The method according to claim 3, wherein if the value of the indication information belongs to a second predefined set, the second terminal device sends a signal at the third transmission time and the fourth transmission time .
The method according to claim 3 or 4, wherein the indication information is included in the downlink control information DCI sent by the network device.
The method according to any one of claims 2 to 5, wherein the method further comprises:

In the N2 time units, the signal sent by the first terminal device with the index i in the N2 time units is the same as the signal sent by the second terminal device with the index i in the N2 time units. The signal sent in the time unit is the same.
The method according to any one of claims 1 to 6, wherein N1 is an integer multiple of the number of cyclic redundancy versions RV used by the second terminal device to send the signal.
A signal receiving method, characterized in that the method includes:

Receiving a signal sent by the second terminal device at the first transmission time;

Receiving the signal sent by the first terminal device and the second terminal device at the second transmission time;

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N1 time units, the second transmission time includes N2 time units, and N1 and N2 are positive integers.
The method according to claim 8, wherein the N1 time units are before the N2 time units, and the indexes of the N1 time units are {0,1,...N1-1}, so The index i of the N2 time units is {0,1,...,N2-1};

The network device receives the signal sent by the first terminal device at the time unit with the index i of the N2 time units and the network device receives the time unit with the index (i mod N1) in the N1 time units The signals sent to the first terminal device are the same.
The method according to claim 9, wherein the method further comprises:

Send instructions;

If the value of the indication information belongs to the first predefined set, instruct the first terminal device to receive the signal at the third transmission time and send the signal at the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, and N1 time units are M1 time units. Part or all of the unit, N2 time units are part or all of the M2 time units.
The method according to claim 9, wherein the method further comprises:

Send instructions;

If the value of the indication information belongs to the second predefined set, instruct the second terminal device to send a signal at the third transmission time and the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, and N1 time units are M1 time units. Part or all of the unit, N2 time units are part or all of the M2 time units.
The method according to claim 10 or 11, wherein the indication information is included in the downlink control information DCI.
The method according to any one of claims 9 to 12, wherein the method further comprises:

The network device receives the signal sent by the first terminal device at the time unit with index i in the N2 time units and the network device receives the second time unit with index i in the N2 time units. The signals sent by the terminal equipment are the same.
The method according to any one of claims 8 to 13, wherein N1 is an integer multiple of the number of cyclic redundancy versions RV used by the second terminal device to send the signal.
A terminal device, characterized in that the terminal device includes a receiving unit and a sending unit, wherein:

The receiving unit is configured to receive a signal sent by a second terminal device at a first transmission time;

The sending unit is configured to send the signal at a second transmission time;

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N1 time units, the second transmission time includes N2 time units, and N1 and N2 are positive integers.
The terminal device according to claim 15, wherein:

The N1 time units are before the N2 time units, the indexes of the N1 time units are {0,1,...N1-1}, and the index i of the N2 time units is {0,1 ,...,N2-1};

The signal sent in the time unit of the N2 time units whose index is i is the same as the signal received in the time unit of the N1 time units whose index is (i mod N1).
The terminal device according to claim 16, wherein the device is further configured to:

Receiving indication information, if the value of the indication information belongs to the first predefined set, receiving the signal at the third transmission time, and sending the signal at the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, and N1 time units are M1 time units. Part or all of the unit, N2 time units are part or all of the M2 time units.
The terminal device according to claim 17, wherein if the value of the indication information belongs to a second predefined set, the second terminal device transmits at the third transmission time and the fourth transmission time signal.
The terminal device according to claim 17 or 18, wherein the indication information is included in the downlink control information DCI sent by the network device.
The terminal device according to any one of claims 16 to 19, wherein the device is further configured to:

In the N2 time units, the signal sent by the time unit with index i in the N2 time units is the same as the signal sent by the second terminal device in the time unit with index i in the N2 time units The signal is the same.
The terminal device according to any one of claims 15 to 20, wherein N1 is an integer multiple of the number of cyclic redundancy versions RV used by the second terminal device to send the signal.
A network device, characterized in that the network device includes a first receiving unit and a second receiving unit, wherein:

The first receiving unit is configured to receive a signal sent by a second terminal device at a first transmission time;

The second receiving unit is configured to receive the signal sent by the first terminal device and the second terminal device at a second transmission time;

Wherein, the first transmission time and the second transmission time do not overlap, the first transmission time includes N1 time units, the second transmission time includes N2 time units, and N1 and N2 are positive integers.
The network device according to claim 22, wherein the N1 time units are before the N2 time units, and the indexes of the N1 time units are {0,1,...N1-1}, The index i of the N2 time units is {0,1,...,N2-1};

The signal sent by the first terminal device is received at the time unit with the index i of the N2 time units and the first terminal is received at the time unit with the index (i mod N1) in the N1 time units The signal sent by the device is the same.
The network device according to claim 23, wherein the network device is further configured to:

Send instructions;

If the value of the indication information belongs to the first predefined set, instruct the first terminal device to receive the signal at the third transmission time and send the signal at the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, and N1 time units are M1 time units. Part or all of the unit, N2 time units are part or all of the M2 time units.
The network device according to claim 23, wherein the network device is further configured to:

Send instructions;

If the value of the indication information belongs to the second predefined set, instruct the second terminal device to send a signal at the third transmission time and the fourth transmission time;

Wherein, the third transmission time and the fourth transmission time do not overlap, the third transmission time includes M1 time units, the fourth transmission time includes M2 time units, and N1 time units are M1 time units. Part or all of the unit, N2 time units are part or all of the M2 time units.
The network device according to claim 24 or 25, wherein the indication information is included in the downlink control information DCI.
The network device according to any one of claims 23 to 26, wherein the network device is further configured to receive a signal sent by the first terminal device in a time unit with index i among the N2 time units This is the same as when the network device receives the signal sent by the second terminal device in the time unit with index i in the N2 time units.
The network device according to any one of claims 22 to 27, wherein N1 is an integer multiple of the number of cyclic redundancy versions RV used by the second terminal device to send the signal.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, the computer program includes program instructions, and the program instructions, when executed by a processor, cause the processor to execute The method of any one of 1 to 14 is required.
A signal sending device in terminal equipment, which is characterized by comprising a processor and a memory, wherein:

The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the method according to any one of claims 1 to 7.
A signal receiving device in network equipment, which is characterized by comprising a processor and a memory, wherein:

The memory is used to store computer program instructions, and the processor is used to execute the computer program instructions, so as to implement the method according to any one of claims 8 to 14.
A chip system, characterized in that the chip system includes a processor for supporting a terminal device to implement the method according to any one of claims 1 to 7.
A chip system, characterized in that the chip system includes a processor for supporting a network device to implement the method according to any one of claims 8 to 14.